Nylog Blue is a viscoelastic fluid made from synthetic refrigeration grade compressor oil. Nylog Blue is fully miscible and compatible with all system refrigerants and oils. Gaskets coated with Nylog will never dry or become heat fixed to the surface. Threaded connections coated with Nylog will block high pressure leaks by forming a hydraulic seal. The compound always remains temperature and vibration resilient. Nylog can be used as a high tack assembly lube when installing shaft seals, O-rings, Schrader valves, ball valves, unloaders or other internal system components.